ci2-android-5-15/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci2-android-5-15/syz-executor1782579443 <...> Warning: Permanently added '10.128.1.181' (ED25519) to the list of known hosts. execve("ci2-android-5-15/syz-executor1782579443", ["ci2-android-5-15/syz-executor1782579443"], 0x7ffd3151c960 /* 10 vars */) = 0 brk(NULL) = 0x55559026d000 brk(0x55559026dd40) = 0x55559026dd40 arch_prctl(ARCH_SET_FS, 0x55559026d3c0) = 0 set_tid_address(0x55559026d690) = 303 set_robust_list(0x55559026d6a0, 24) = 0 rseq({cpu_id_start=0, cpu_id=RSEQ_CPU_ID_UNINITIALIZED, rseq_cs=NULL, flags=0, node_id=0, mm_cid=0, slice_ctrl={request=0, granted=0, __reserved=0}, __reserved=0}, 32, 0, 0x53053053) = -1 ENOSYS (Function not implemented) prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlinkat(AT_FDCWD, "/proc/self/exe", "/root/ci2-android-5-15/syz-executor1782579443", 4096) = 45 getrandom("\x9c\x5d\x24\x25\x60\x01\x11\x47", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55559026dd40 brk(0x55559028ed40) = 0x55559028ed40 brk(0x55559028f000) = 0x55559028f000 mprotect(0x7f275f645000, 20480, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 getrandom("\xdf\x12\xb4\x97\x91\x39\xc1\x23", 8, GRND_NONBLOCK) = 8 mkdir("./syzkaller.F8mL78", 0700) = 0 chmod("./syzkaller.F8mL78", 0777) = 0 chdir("./syzkaller.F8mL78") = 0 unshare(CLONE_NEWPID) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55559026d690) = 304 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 ci2-android-5-15/strace-static-x86_64: Process 304 attached [pid 304] set_robust_list(0x55559026d6a0, 24) = 0 [pid 304] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 304] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 304] getppid() = 0 [pid 304] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 304] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 304] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 304] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 304] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 304] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 304] unshare(CLONE_NEWNS) = 0 [pid 304] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 304] unshare(CLONE_NEWIPC) = -1 EINVAL (Invalid argument) [pid 304] unshare(CLONE_NEWCGROUP) = 0 [pid 304] unshare(CLONE_NEWUTS) = 0 [pid 304] unshare(CLONE_SYSVSEM) = 0 [pid 304] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 304] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 304] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 304] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 304] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 304] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 304] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 304] getpid() = 1 [pid 304] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b eb 86 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 5e ff ff ff 4c [ 25.197483][ T304] RSP: 0018:ffffc900007dfbd0 EFLAGS: 00010293 [ 25.203592][ T304] RAX: ffffffff81b73525 RBX: ffff888125791f28 RCX: ffff88811e768000 [ 25.211575][ T304] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 25.219563][ T304] RBP: ffffc900007dfbf8 R08: 0000000000000003 R09: 0000000000000004 [ 25.227522][ T304] R10: dffffc0000000000 R11: fffff520000fbf68 R12: dffffc0000000000 [ 25.235498][ T304] R13: 1ffff11024af23ee R14: ffff888125791f70 R15: 0000000000000000 [ 25.243485][ T304] FS: 000055559026d3c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 25.252419][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.259017][ T304] CR2: 000056429374d758 CR3: 0000000124848000 CR4: 00000000003506a0 [ 25.266979][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 25.274951][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 25.282941][ T304] Call Trace: [ 25.286208][ T304] [ 25.289141][ T304] shmem_rmdir+0x5b/0x90 [ 25.293392][ T304] vfs_rmdir+0x1ae/0x450 [ 25.297620][ T304] incfs_kill_sb+0xfe/0x210 [ 25.302130][ T304] deactivate_locked_super+0xa0/0x100 [ 25.307510][ T304] deactivate_super+0xaf/0xe0 [ 25.312192][ T304] cleanup_mnt+0x44f/0x500 [ 25.316613][ T304] __cleanup_mnt+0x19/0x20 [ 25.321045][ T304] task_work_run+0x127/0x190 [ 25.325644][ T304] ptrace_notify+0x230/0x270 [ 25.330270][ T304] ? do_notify_parent+0x830/0x830 [ 25.335301][ T304] ? user_path_at_empty+0x162/0x1c0 [ 25.340527][ T304] ? __x64_sys_umount+0x12d/0x170 [ 25.345558][ T304] ? path_umount+0xfa0/0xfa0 [ 25.350158][ T304] syscall_exit_work+0x87/0x160 [ 25.355011][ T304] syscall_exit_to_user_mode_prepare+0x1c/0x20 [ 25.361169][ T304] syscall_exit_to_user_mode+0xd/0x30 [ 25.366550][ T304] do_syscall_64+0x58/0xa0 [ 25.370971][ T304] ? clear_bhb_loop+0x50/0xa0 [ 25.375658][ T304] ? clear_bhb_loop+0x50/0xa0 [ 25.380347][ T304] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 25.386249][ T304] RIP: 0033:0x7f275f5b2527 [ 25.390677][ T304] Code: bf 41 4d 56 53 b8 9d 00 00 00 0f 05 83 f8 ea 75 a2 c7 05 64 85 09 00 00 00 00 00 eb 96 e8 b1 05 00 00 90 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 d8 ff ff ff f7 d8 64 89 02 b8 [ 25.410301][ T304] RSP: 002b:00007ffc32bcd878 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 25.418732][ T304] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f275f5b2527 [ 25.426715][ T304] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc32bcd930 [ 25.434722][ T304] RBP: 00007ffc32bcd930 R08: 00007ffc32bce930 R09: 00000000ffffffff [ 25.442707][ T304] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc32bce9a0 [ 25.450683][ T304] R13: 000055559026e720 R14: 00007ffc32bce9a0 R15: 0000000000000001 [ 25.458680][ T304] [ 25.461691][ T304] ---[ end trace 64514459f99f5cd6 ]--- [ 25.467158][ T304] ================================================================== [ 25.475194][ T304] BUG: KASAN: null-ptr-deref in ihold+0x20/0x60 [ 25.481420][ T304] Write of size 4 at addr 0000000000000170 by task syz-executor178/304 [ 25.489636][ T304] [ 25.491941][ T304] CPU: 1 PID: 304 Comm: syz-executor178 Tainted: G W syzkaller #0 [ 25.501029][ T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 25.511067][ T304] Call Trace: [ 25.514328][ T304] [ 25.517251][ T304] __dump_stack+0x21/0x30 [ 25.521564][ T304] dump_stack_lvl+0x110/0x170 [ 25.526238][ T304] ? show_regs_print_info+0x20/0x20 [ 25.531422][ T304] ? _raw_spin_lock+0x94/0xf0 [ 25.536208][ T304] ? _raw_spin_trylock_bh+0x150/0x150 [ 25.541588][ T304] ? ihold+0x20/0x60 [ 25.545476][ T304] kasan_report+0xcc/0x150 [ 25.549882][ T304] ? ihold+0x20/0x60 [ 25.553778][ T304] kasan_check_range+0x249/0x2a0 [ 25.558699][ T304] __kasan_check_write+0x14/0x20 [ 25.563622][ T304] ihold+0x20/0x60 [ 25.567328][ T304] vfs_rmdir+0x23d/0x450 [ 25.571575][ T304] incfs_kill_sb+0xfe/0x210 [ 25.576065][ T304] deactivate_locked_super+0xa0/0x100 [ 25.581423][ T304] deactivate_super+0xaf/0xe0 [ 25.586083][ T304] cleanup_mnt+0x44f/0x500 [ 25.590480][ T304] __cleanup_mnt+0x19/0x20 [ 25.594877][ T304] task_work_run+0x127/0x190 [ 25.599448][ T304] ptrace_notify+0x230/0x270 [ 25.604019][ T304] ? do_notify_parent+0x830/0x830 [ 25.609024][ T304] ? user_path_at_empty+0x162/0x1c0 [ 25.614202][ T304] ? __x64_sys_umount+0x12d/0x170 [ 25.619206][ T304] ? path_umount+0xfa0/0xfa0 [ 25.623785][ T304] syscall_exit_work+0x87/0x160 [ 25.628618][ T304] syscall_exit_to_user_mode_prepare+0x1c/0x20 [ 25.634751][ T304] syscall_exit_to_user_mode+0xd/0x30 [ 25.640106][ T304] do_syscall_64+0x58/0xa0 [ 25.644505][ T304] ? clear_bhb_loop+0x50/0xa0 [ 25.649163][ T304] ? clear_bhb_loop+0x50/0xa0 [ 25.653820][ T304] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 25.659696][ T304] RIP: 0033:0x7f275f5b2527 [ 25.664098][ T304] Code: bf 41 4d 56 53 b8 9d 00 00 00 0f 05 83 f8 ea 75 a2 c7 05 64 85 09 00 00 00 00 00 eb 96 e8 b1 05 00 00 90 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 d8 ff ff ff f7 d8 64 89 02 b8 [ 25.683692][ T304] RSP: 002b:00007ffc32bcd878 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 25.692088][ T304] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f275f5b2527 [ 25.700046][ T304] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc32bcd930 [ 25.708003][ T304] RBP: 00007ffc32bcd930 R08: 00007ffc32bce930 R09: 00000000ffffffff [ 25.715961][ T304] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc32bce9a0 [ 25.723920][ T304] R13: 000055559026e720 R14: 00007ffc32bce9a0 R15: 0000000000000001 [ 25.731989][ T304] [ 25.735003][ T304] ================================================================== [ 25.743045][ T304] Disabling lock debugging due to kernel taint [ 25.749302][ T304] BUG: kernel NULL pointer dereference, address: 0000000000000170 [ 25.757111][ T304] #PF: supervisor write access in kernel mode [ 25.763160][ T304] #PF: error_code(0x0002) - not-present page [ 25.769126][ T304] PGD 0 P4D 0 [ 25.772486][ T304] Oops: 0002 [#1] PREEMPT SMP KASAN [ 25.777668][ T304] CPU: 1 PID: 304 Comm: syz-executor178 Tainted: G B W syzkaller #0 [ 25.786757][ T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 25.796802][ T304] RIP: 0010:ihold+0x26/0x60 [ 25.801309][ T304] Code: 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8 91 8a b2 ff 48 8d bb 70 01 00 00 be 04 00 00 00 e8 80 02 f2 ff 41 be 01 00 00 00 44 0f c1 b3 70 01 00 00 41 ff c6 bf 02 00 00 00 44 89 f6 e8 11 [ 25.820898][ T304] RSP: 0018:ffffc900007dfc10 EFLAGS: 00010246 [ 25.826953][ T304] RAX: ffff88811e768000 RBX: 0000000000000000 RCX: ffff88811e768000 [ 25.834908][ T304] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00000000ffffffff [ 25.842865][ T304] RBP: ffffc900007dfc20 R08: 0000000000000003 R09: 0000000000000004 [ 25.850819][ T304] R10: dffffc0000000000 R11: fffffbfff0e18e4c R12: 1ffff11024249c06 [ 25.858776][ T304] R13: dffffc0000000000 R14: 0000000000000001 R15: 0000000000000000 [ 25.866733][ T304] FS: 000055559026d3c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 25.875646][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.882213][ T304] CR2: 0000000000000170 CR3: 0000000124848000 CR4: 00000000003506a0 [ 25.890170][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 25.898127][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 25.906080][ T304] Call Trace: [ 25.909343][ T304] [ 25.912261][ T304] vfs_rmdir+0x23d/0x450 [ 25.916489][ T304] incfs_kill_sb+0xfe/0x210 [ 25.920975][ T304] deactivate_locked_super+0xa0/0x100 [ 25.926330][ T304] deactivate_super+0xaf/0xe0 [ 25.930991][ T304] cleanup_mnt+0x44f/0x500 [ 25.935390][ T304] __cleanup_mnt+0x19/0x20 [ 25.939792][ T304] task_work_run+0x127/0x190 [ 25.944379][ T304] ptrace_notify+0x230/0x270 [ 25.948968][ T304] ? do_notify_parent+0x830/0x830 [ 25.953986][ T304] ? user_path_at_empty+0x162/0x1c0 [ 25.959180][ T304] ? __x64_sys_umount+0x12d/0x170 [ 25.964202][ T304] ? path_umount+0xfa0/0xfa0 [ 25.968789][ T304] syscall_exit_work+0x87/0x160 [ 25.973638][ T304] syscall_exit_to_user_mode_prepare+0x1c/0x20 [ 25.979789][ T304] syscall_exit_to_user_mode+0xd/0x30 [ 25.985156][ T304] do_syscall_64+0x58/0xa0 [ 25.990527][ T304] ? clear_bhb_loop+0x50/0xa0 [ 25.995219][ T304] ? clear_bhb_loop+0x50/0xa0 [ 25.999906][ T304] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 26.005830][ T304] RIP: 0033:0x7f275f5b2527 [ 26.010242][ T304] Code: bf 41 4d 56 53 b8 9d 00 00 00 0f 05 83 f8 ea 75 a2 c7 05 64 85 09 00 00 00 00 00 eb 96 e8 b1 05 00 00 90 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 d8 ff ff ff f7 d8 64 89 02 b8 [ 26.029842][ T304] RSP: 002b:00007ffc32bcd878 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 26.038260][ T304] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f275f5b2527 [ 26.046229][ T304] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc32bcd930 [ 26.054200][ T304] RBP: 00007ffc32bcd930 R08: 00007ffc32bce930 R09: 00000000ffffffff [ 26.062175][ T304] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc32bce9a0 [ 26.070155][ T304] R13: 000055559026e720 R14: 00007ffc32bce9a0 R15: 0000000000000001 [ 26.078123][ T304] [ 26.081135][ T304] Modules linked in: [ 26.085025][ T304] CR2: 0000000000000170 [ 26.089169][ T304] ---[ end trace 64514459f99f5cd7 ]--- [ 26.094615][ T304] RIP: 0010:ihold+0x26/0x60 [ 26.099115][ T304] Code: 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8 91 8a b2 ff 48 8d bb 70 01 00 00 be 04 00 00 00 e8 80 02 f2 ff 41 be 01 00 00 00 44 0f c1 b3 70 01 00 00 41 ff c6 bf 02 00 00 00 44 89 f6 e8 11 [ 26.118714][ T304] RSP: 0018:ffffc900007dfc10 EFLAGS: 00010246 [ 26.124774][ T304] RAX: ffff88811e768000 RBX: 0000000000000000 RCX: ffff88811e768000 [ 26.132741][ T304] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00000000ffffffff [ 26.140705][ T304] RBP: ffffc900007dfc20 R08: 0000000000000003 R09: 0000000000000004 [ 26.148670][ T304] R10: dffffc0000000000 R11: fffffbfff0e18e4c R12: 1ffff11024249c06 [ 26.156641][ T304] R13: dffffc0000000000 R14: 0000000000000001 R15: 0000000000000000 [ 26.164616][ T304] FS: 000055559026d3c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 26.173545][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.180128][ T304] CR2: 0000000000000170 CR3: 0000000124848000 CR4: 00000000003506a0 [ 26.188100][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 26.196066][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 26.204031][ T304] Kernel panic - not syncing: Fatal exception [ 26.210151][ T304] Kernel Offset: disabled [ 26.214467][ T304] Rebooting in 86400 seconds..